All-optical ultrafast XOR/XNOR logic gates, binary counter, and double-bit comparator with silicon microring resonators

2014 ◽  
Vol 53 (28) ◽  
pp. 6527 ◽  
Author(s):  
Purnima Sethi ◽  
Sukhdev Roy
Keyword(s):  
Logic Gates ◽  
Microring Resonators ◽  
Binary Counter ◽  
All Optical

Evolution of Adder and Subtractor Circuit Using Si3N4 Microring Resonator

2019 ◽  
Vol 0 (0) ◽  
Author(s):  
Ankur Saharia ◽  
Ashish Kumar Ghunawat ◽  
Manish Tiwari ◽  
Anton V. Bourdine ◽  
Vladimir A. Burdin ◽  
...  
Keyword(s):  
Numerical Simulations ◽  
Logic Gates ◽  
Full Adder ◽  
Microring Resonator ◽  
Microring Resonators ◽  
Basic Logic ◽  
Combinational Circuit ◽  
Half Adder ◽  
All Optical ◽  
Optical Processor

AbstractAll-optical processor capable of processing optical bits has been a long-standing goal of photonics. In this paper, we report the results obtained by numerical simulations regarding the designing of an all-optical combinational circuit of an adder and subtractor circuits based on Si3N4 microring resonators. The designs of combinational circuit like adders and subtractor based on the use of all-optical basic logic gates are discussed while presenting the numerically simulated results. Extinction ratios of 5.2 dB, 3.5 dB and 2.7 dB are obtained for the half adder, full adder and half subtractor, respectively.

Tunable all-optical AND logic gates via four-wave mixing based on graphene-on-silicon slot microring resonators

2021 ◽  
Vol 138 ◽  
pp. 106926
Author(s):  
Wei Wu ◽  
Qibing Sun ◽  
Guoxi Wang ◽  
Lingxuan Zhang ◽  
Wei Zhao
Keyword(s):  
Logic Gates ◽  
Four Wave Mixing ◽  
Microring Resonators ◽  
Wave Mixing ◽  
All Optical

Frequency Encoded All Optical Tri-state Logic Gates NOT and NAND Using Semiconductor Optical Amplifier Based Interferometric Switches

2020 ◽  
Vol 10 (4) ◽  
pp. 369-380
Author(s):  
K. Maji ◽  
K. Mukherjee ◽  
A. Raja
Keyword(s):  
Semiconductor Optical Amplifier ◽  
Extinction Ratio ◽  
Optical Power ◽  
Logic Gates ◽  
Optical Amplifier ◽  
All Optical ◽  
State Frequency ◽  
Spontaneous Noise ◽  
First Time ◽  
Practical Feasibility

All optical tri-state frequency encoded logic gates NOT and NAND are proposed and numerically investigated using TOAD based interferometric switch for the first time to the best of our knowledge. The optical power spectrum, extinction ratio, contrast ration, and amplified spontaneous noise are calculated to analyze and confirm practical feasibility of the gates. The proposed device works for low switching energy and has high contrast and extinction ratio as indicated in this work.

Sign in / Sign up

Export Citation Format

Share Document